ch 31 the child with endocrine dysfunction Flashcards
type of hormone: create the effect near the point of secretion
local hormone
type of hormone: released into the bloodstream
where they are carried to responsive tissues
general hormone
what 2 regulatory systems maintain homeostasis
endocrine system
autonomic nervous system (sympathetic and parasympathetic)
when does hormonal control of bodily functions regulate for children
12-18 months old
what hormone is deficient in hypopituitarism
growth hormone
how is diagnosis of hypopituitarism made
-plasma growth hormone levels
-hand xrays
Tx hypopituitarism
-biosynthetic growth hormone injections
-thyroid extract
-cortisone
-testosterone/estrogen/progesterone
what is the best time of day to give biosynthetic growth hormone injection
before bed
Rare neurodegenerative
condition reported in some
patients after receiving
human GH from cadavers
Creutzfeldt-Jakob Disease (CJD)
“human mad cow disease”
what disorders can hyperpituitarism result in
-acromegaly
-cushings disease
-galactorrhea
S+S acromegaly
-excess growth hormone, overgrowth of long bones
-increased muscle
-typical facial features
how is diagnosis of acromegaly made
-radiologic studies
-endocrine studies
Tx hyperpituitarism
-surgery to remove tumor
-radiation/radioactive implants
-hormone replacement therapy
what ages do precocious puberty occur in girls? boys?
girls: before 8 yo
boys: before 9 yo
3 types precocious puberty
-central
-peripheral
-incomplete
potential causes of precocious puberty
-disorder of gonads
-disorder of adrenal glands
-disorder of hypothalmic-pituitary-gonadal axis
med for Tx precocious puberty
when is it discontinued
lupron: slows prepubertal rates
stop med at normal puberty age
primary causes of diabetes insipidus (DI) ? secondary causes?
primary: hyposecretion of ADH
secondary: trauma, tumor, CNS infection, aneurysm
S+S diabetes insipidus in children? infants?
children:
-polyuria
-polydipsia (thirst)
-first sign often enuresis (bedwetting)
-dehydration
-high H&H
-high serum osmolarity
infants:
-irritability relieved by water (not milk)
meds for Tx of DI
-daily hormone replacement of vasopressin
-DDAVP (oral/nasal/IM/SQ)
*treatment for life
nursing interventions for DI
-accurate I&Os
-observe for signs of fluid overload
-seizure precautions
-DDAVP 2x/day
Produced by
hypersecretion of the
posterior pituitary
(increased ADH)
syndrome of inappropriate antidiuretic hormone (SIADH)
S+S SIADH
-fluid retention (water intoxication, overhydrated)
-anorexia
-N/V
-weight gain
-hyponatremia
-low serum osmolarity
-irritability
-personality changes
risk with DI
hypovolemic shock
risk with SIADH
seizures
common S+S between DI and SIADH
excessive thirst
Tx SIADH
hypertonic saline
fluid restriction
causes juvenile hypothyroidism
-congenital
-acquired (after thyroidectomy or radiation)
S+S hypothyroidism
-slowed growth
-excessive weight gain
-constipation
-sleepiness
-delayed puberty
-dry skin, sparse hair, periorbital edema
Tx hypothyroidism
-thyroid hormone replacement
-prompt Tx needed for brain growth in infant
causes hyperthyroidism
-congenital (usually from maternal use antithyroid drugs during pregnancy)
-acquired (neoplasm, inflammatory disease, dietary deficiency, increased secretion thyrotropic hormone)
important consideration for infant born with hyperthyroidism (goiter)
-precautions for emergency ventilation
-hyperextension of neck helps with breathing
most common cause thyroid disease in children/teens
lymphocytic thyroiditis
S+S lymphocytic thyroiditis
-lymphocytic infiltration of thyroid gland
-inflammation
-hyperplasia (goiter)
-usually euthyroid but with S+S of hypothyroidism
Tx lymphocytic thyroiditis
-may resolve spontaneously within 1-2 yrs
-oral thyroid hormone helps decrease goiter
-surgery is contraindicated
S+S hyperthyroidism (graves disease)
-exopthalmos
-excessive motor irritability, tremors, insomnia, short attentions pan
-GI hyperactivity (diarrhea)
-rapid bounding pulse
-dyspnea (even with light exertion)
-heat intolerance (skin is warm and flushed)